GN08062 [PANASONIC]
Interface Circuit, PDIP8, DIP-8;
| 型号： | GN08062 |
| 厂家： | 
PANASONIC |
| 描述： | Interface Circuit, PDIP8, DIP-8 光电二极管 接口集成电路 |
| 文件： | 总3页 (文件大小：55K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
GaAs MMICs
GN8062
GaAs IC
Unit : mm
For semiconductor laser drive
■ Features
1
2
3
4
8
7
6
5
●
●
●
High-speed switching
High output
Pulse current and DC bias current can be controlled.
0.7min.
6.4±0.2
4.5max. 4.0max.
■ Absolute Maximum Ratings (Ta = 25˚C)
1 : GND
2 : NC
3 : NC
4 : OUT
5 : VIP
6 : VDD
7 : VIN
8 : VSS
Parameter
Symbol
Rating
Unit
V
VDD
6
0.35max.
Power supply voltage
7.62±0.2
VSS
– 6
– 0.5 to VDD–1.5
1.5 to VDD
VDD
V
0 to 15˚
VIN
V
* 5
Pin voltage
VIp
V
* 1
VOUT
V
8-Lead Plastic DIL Package
* 4
IDD
50
mA
mA
mA
mW
˚C
Power current
ISS
40
Output current
IOUT
145
* 2
Allowable power dissipation
Channel temperature
Storage temperature
Operating ambient temperature
PD
700
Tch
150
Tstg
– 55 to +150
–10 to +75
˚C
* 3
Topr
˚C
* 1
* 2
* 3
Do not apply the voltage higher than the set VDD
Guaranteed value of the unit at Ta= 25˚C.
Range in which the IC circuit function operates and not the guaranteed range of
electric characteristics.
.
* 4
* 5
IDD is a current when the pulse output current is zero.
Voltage when the constant current source has been connected.
■ Electrical Characteristics (Ta = 25˚C)
Parameter
Symbol Test circuit
Condition
Min
Typ
120
1
Max
Unit
mA
mA
mA
mA
V
Ipmax.
Ipmin.
1
1
2
2
VDD= 5V, VSS= –5V, VIN= 2V, Ip=120mA, RL=10Ω
VDD= 5V, VSS= –5V,VIN= 0.4V, Ip=120mA, RL=10Ω
VDD= 5V, VSS= – 5V, VIN= 0.4V
Ip= 0, RL=10Ω
100
Pulse output current
5
* 1
IDD
35
50
40
Supply current
Input voltage
ISS
25
VIH
VIL
tr* 2
tf* 2
2.5
0.4
7
V
Rise time
Fall time
3
3
VDD= 5V, VSS= – 5V, Ip=100mA
ns
RL=10Ω
5
ns
GaAs MMICs
GN8062
* 1
* 2
The current value to be supplied from the 5V power supply is a total sum of this value plus the pulse output current and bias output current.
Waveform of input and output signals
Input signal
Output waveform
2µS
90%
10µS
2.5V min.
10%
0.4V max.
t
r
tf
The rise/fall time of the input signal
is 2ns (10 to 90%)
*
t
t
r ··· 10% to 90%
f ··· 90% to 10%
Test circuit 1
Test circuit 2
0.4V
5V
C1
V
5V
IN
+
–
+
–
C2
C2
C1
–5V
–
C1
A
6
–5V
C1
+
C2
–
+
A
8
C2
=0mA
I
P
=120mA
I
P
7
2
5
4
8
7
2
6
3
5
1
3
1
4
A
R
L
5V
R
L
+
–
5V
C1
C2
+
–
C1
C2
Test circuit 3
PULSE
GENERATOR
5V
C1
+
–
R2
C2
C1 : 0.1µF
C2 : 3.3µF
R1 : 10Ω
R2 : 50Ω
–5V
–
+
=100mA
I
P
C1
C2
8
7
6
5
1
2
3
4
R1
C1
5V
+
–
C2
FET PROBE
GaAs MMICs
GN8062
■ Block Diagram
INSIDE GN8062
OUTSIDE GN8062
VDD
V
IN
+
5V
LASER DIODE
VSS
VSS
VDD
OUT
VSS
VSS
GND
VSS
VIN
VDD
VIP
1
2
8
7
NC
NC
VIP
3
4
6
5
OUT
from CONTROL
CIRCUIT
■ Caution for Handling
1) The recommended VIN voltage is 2.5 to 3V for [H] and
0 to 0.4V for [L].
2) Do not apply VIN while the power supply is OFF.
3) For the current source to be connected to the VIP pin,
use a Si bipolar transistor as shown in the circuit dia-
gram.
MA3068(V
Z
=6.8V,Cd=85pF,RZ=6Ω)
(Example: 2SD874)
To connect a resistor to the emitter or collector, use a
resistor of a few ohm. The use of higher resistor may
cause large change in the voltage at the VIP pin, and
may make the output waveform distortion. (See the pulse
output current control example).
GN8062
GND VSS
–5.0V
NC
VIN
200Ω to 2kΩ
50Ω
5.0V
NC VDD
OUT VIP
To use another current control circuit, set so that the VIP
pin voltage becomes around 2V.
4) When mounting, minimize the connection distance be-
tween the semiconductor laser and IC, and use the chip
parts (C, R) of less parasitic effects.
Connection example of pin protection circuit
5) Attention to damage by the power surge (see the ex-
ample connection of the pin protection circuit).
During handling, take care to ground the human body
and solder iron tip.
GN8062
GND VSS
NC
VIN
NC VDD
OUT VIP
6) When the power supply is turned ON and OFF, set the
current value of the current source connected to the VIP
pin to zero. This is important to prevent the large cur-
rent flow through the semiconductor laser during power
ON/OFF.
I COLLECTOR
I
B
–
+
0.22mF
5Ω
When the power supply is ON, be sure to turn ONVDD
,
after VSS is completely equal to – 5V. When the power
supply is OFF, be sure to turn OFF VSS, after VDD is
completely 0V.
=–
5 to 0V
V
EE
Example of pulse output current control circuit
7) Pay attention to release the heat.
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